Generic Franck Muller Crazy Hours 7851 Sapphire Crystal 35.9mm

Product Description

This generic sapphire crystal is designed for the Franck Muller Crazy Hours 7851, featuring the iconic tonneau profile with dimensions of 35.9mm × 28.9mm, 5.2mm height, and 0.9mm thickness. Made from synthetic sapphire (Mohs 9), it offers exceptional scratch resistance and optical clarity for undistorted dial visibility across the unconventional layout.

Features & Function

• Tonneau shape precisely matches Crazy Hours 7851 case

• High hardness (9 Mohs) resists daily scratches and wear

• Excellent optical clarity for undistorted dial readability

• 0.9mm thin edge profile for precise case fitting

Specifications

• Length: 35.9 mm

• Width: 28.9 mm

• Height: 5.2 mm

• Thickness: 0.9 mm

• Shape: Tonneau (barrel-shaped)

• Material: Synthetic sapphire (Mohs 9)

• Compatible Model: Franck Muller Crazy Hours 7851

Applications

• Replacement crystal for Franck Muller Crazy Hours 7851

• Suitable for luxury tonneau-shaped watch restoration

FAQs

1.Is this an original Franck Muller part?
No, it is a generic aftermarket crystal, not OEM.

2.Will it fit my Crazy Hours 7851 perfectly?
Only if your watch uses exactly 35.9×28.9×5.2×0.9mm glass; measure before purchase.

3.Does the crystal affect the Crazy Hours dial readability?
No, its optical clarity ensures undistorted view of the random numeral layout.

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